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2028篇 您的检索式:作者名="Peng CHENG"
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1Clinical application of a new device for minimally invasive circumcision显示文摘瞄准:与 phimosis 或过量包皮在不同年龄的男病人的治疗学习一台可处理的割礼设备的临床的效果。方法:在 5 和 95 年的年龄之间的 1200 个病人在在 2005 年 10 月和 2007 年 9 月之间的 2 年的时期用这个过程经历了割礼。这些盒子, 904 有过量包皮, 296 是 phimosis 的盒子。结果:在 96.33% 盒子中,切口愈合了,离开没有使好化妆结果留下疤痕并且生产的内部包皮的最小的数量。没有到系带的设备脱臼或损坏的事件。平均起作用的时间为 phimosis 是为过量包皮,和 3.5 min 的 2.5 min。在穿设备的 7 天期间,对中等浮肿温和与 phimosis 与过量包皮并且在那些的 2.58 % 发生在盒子的 10.08 % 。在系带的浮肿在 1.67% 病人被看见,并且仅仅, 0.67% 有切口的感染。86.25% 病人的一个总数由于阴茎勃起报导了疼痛。在设备的移动以后, 0.58% 案例有在切口附近的最小的流血,并且 2.42% 弯屈裂开。结论:新设备能与 phimosis 和过量包皮被用于病人的一个压到优势的多数。这种技术相对简单表现,并且经历了这个手术的病人有很少的复杂并发症。抗菌素没比用常规方法被割除的那些被要求,病人们报导了更少的疼痛。有这台设备的割礼要求最小的组织操作,并且比用常规技术的割礼更快、安全。Yi-Feng Peng Yue Cheng Guo-Yao Wang Suo-Qun Wang Chao Jia Ben-Hai Yang Ru Zhu Shu-Chuan Jian Qing-Wen Li Da-Wei Geng 2008Asian Journal of Andrology2008,10,3:105
2The first offshore natural gas hydrate production test in South China Sea显示文摘Natural gas hydrates (NGH)is one of key future clean energy resources.Its industrialized development will help remit the huge demand of global natural gas,relieve the increasing pressure of the environment, and play a vital role in the green sustainable growth of human societies.Based on nearly two decades' studying on the reservoir characteristics in the South China Sea (SCS)and the knowledge of reservoir system,the China Geological Survey (CGS)conducted the first production test on an optimal target selected in Shenhu area SCS in 2017.Guided by the 'three-phase control'exploitation theory which focused on formation stabilization,technologies such as formation fluid extraction,well drilling and completing, reservoir stimulating,sand controlling,environmental monitoring,monitoring and preventing of secondary formation of hydrates were applied.The test lasted for 60 days from May 10^th when starting to pump, drop pressure and ignite to well killing on July 9^th,with gas production of 3.09×10^5 m^3 in total,which is a world record with the longest continuous duration of gas production and maximal gas yield.This successful test brings a significant breakthrough on safety control of NGH production.Jin-fa Li Jian-liang Ye Xu-wen Qin Hai-jun Qiu Neng-you Wu Hai-long Lu Wen-wei Xie Jing-an Lu Fei Peng Zhen-qiang Xu Cheng Lu Zeng-gui Kuang Jian-gong Wei Qian-yong Liang Hong-feng Lu Bei-bei Kou 2018China Geology2018,1,1:117
3Stable classi?cation with limited sample: transferring a 30-m resolution sample set collected in 2015 to mapping 10-m resolution global land cover in 2017显示文摘As the world strives to reduce the impact of population growth, urbanization, agricultural expansion, and climate change on food security, energy and water shortage, resource over-exploration, biodiversity loss, environmental pollution, and ultimately human health, timely and higher resolution land cover information is urgently needed to achieve the sustainable development goals of the United Nations.Peng Gong Han Liu Meinan Zhang Congcong Li Jie Wang Huabing Huang Nicholas Clinton Luyan Ji Wenyu Li Yuqi Bai Bin Chen Bing Xu Zhiliang Zhu Cui Yuan Hoi Ping Suen Jing Guo Nan Xu Weijia Li Yuanyuan Zhao Jun Yang Chaoqing Yu Xi Wang Haohuan Fu Le Yu Iryna Dronova Fengming Hui Xiao Cheng Xueli Shi Fengjin Xiao Qiufeng Liu Lianchun Song 2019Science Bulletin2019,64,6:166
4Clinical and biochemical indexes from 2019-nCoV infected patients linked to viral loads and lung injury显示文摘The outbreak of the 2019-nCoV infection began in December 2019 in Wuhan,Hubei province,and rapidly spread to many provinces in China as well as other countries.Here we report the epidemiological,clinical,laboratory,and radiological characteristics,as well as potential biomarkers for predicting disease severity in 2019-nCoV-infected patients in Shenzhen,China.All 12 cases of the 2019-nCoV-infected patients developed pneumonia and half of them developed acute respiratory distress syndrome (ARDS).The most common laboratory abnormalities were hypoalbuminemia,lymphopenia,decreased percentage of lymphocytes (LYM) and neutrophils (NEU),elevated C-reactive protein (CRP) and lactate dehydrogenase (LDH),and decreased CD8 count.The viral load of 2019-nCoV detected from patient respiratory tracts was positively linked to lung disease severity.ALB,LYM,LYM (%),LDH,NEU (%),and CRP were highly correlated to the acute lung injury.Age,viral load,lung injury score,and blood biochemistry indexes,albumin (ALB),CRP,LDH,LYM (%),LYM,and NEU (%),may be predictors of disease severity.Moreover,the Angiotensin Ⅱlevel in the plasma sample from 2019-nCoV infected patients was markedly elevated and linearly associated to viral load and lung injury.Our results suggest a number of potential diagnosis biomarkers and angiotensin receptor blocker (ARB) drugs for potential repurposing treatment of 2019-nCoV infection.Yingxia Liu Yang Yang Cong Zhang Fengming Huang Fuxiang Wang Jing Yuan Zhaoqin Wang Jinxiu Li Jianming Li Cheng Feng Zheng Zhang Lifei Wang Ling Peng Li Chen Yuhao Qin Dandan Zhao Shuguang Tan Lu Yin Jun Xu Congzhao Zhou Chengyu Jiang Lei Liu 2020Science China(Life Sciences)2020,63,3:157
5A rapid advice guideline for the diagnosis and treatment of 2019 novel coronavirus(2019-nCoV) infected pneumonia(standard version)显示文摘In December 2019, a new type viral pneumonia cases occurred in Wuhan, Hubei Province;and then named '2019 novel coronavirus(2019-nCoV)' by the World Health Organization(WHO) on 12 January 2020. For it is a never been experienced respiratory disease before and with infection ability widely and quickly, it attracted the world’s attention but without treatment and control manual. For the request from frontline clinicians and public health professionals of 2019-nCoV infected pneumonia management, an evidence-based guideline urgently needs to be developed. Therefore, we drafted this guideline according to the rapid advice guidelines methodology and general rules of WHO guideline development;we also added the first-hand management data of Zhongnan Hospital of Wuhan University. This guideline includes the guideline methodology, epidemiological characteristics, disease screening and population prevention, diagnosis, treatment and control(including traditional Chinese Medicine), nosocomial infection prevention and control, and disease nursing of the 2019-nCoV. Moreover, we also provide a whole process of a successful treatment case of the severe 2019-nCoV infected pneumonia and experience and lessons of hospital rescue for 2019-nCoV infections. This rapid advice guideline is suitable for the first frontline doctors and nurses, managers of hospitals and healthcare sections, community residents, public health persons, relevant researchers, and all person who are interested in the 2019-nCoV.Ying-Hui Jin Lin Cai Zhen-Shun Cheng Hong Cheng Tong Deng Yi-Pin Fan Cheng Fang Di Huang Lu-Qi Huang Qiao Huang Yong Han Bo Hu Fen Hu Bing-Hui Li Yi-Rong Li Ke Liang Li-Kai Lin Li-Sha Luo Jing Ma Lin-Lu Ma Zhi-Yong Peng Yun-Bao Pan Zhen-Yu Pan Xue-Qun Ren Hui-Min Sun Ying Wang Yun-Yun Wang Hong Weng Chao-Jie Wei Dong-Fang Wu Jian Xia Yong Xiong Hai-Bo Xu Xiao-Mei Yao Yu-Feng Yuan Tai-Sheng Ye Xiao-Chun Zhang Ying-Wen Zhang Yin-Gao Zhang Hua-Min Zhang Yan Zhao Ming-Juan Zhao Hao Zi Xian-Tao Zeng Yong-Yan Wang Xing-Huan Wang 2020Military Medical Research2020,7,1:161
6GPS-constrained inversion of present-day slip rates along major faults of the Sichuan-Yunnan region, China显示文摘A linked-fault-element model is employed to invert for contemporary slip rates along major active faults in the Sichuan-Yunnan region (96°-108°E, 21°-35°N) using the least squares method. The model is based on known fault geometry, and constrained by a GPS-derived horizontal velocity field. Our results support a model attributing the eastward extrusion of the Tibetan Plateau driven mainly by the north-northeastward indentation of the Indian plate into Tibet and the gravitational collapse of the plateau. Resisted by a relatively stable south China block, materials of the Sichuan-Yunnan region rotate clockwise around the eastern Himalayan tectonic syntaxis. During the process the Garzê-Yushu, Xianshuihe, Anninghe, Zemuhe, Daliangshan, and Xiaojiang faults, the southwest extension of the Xiaojiang fault, and the Daluo-Jinghong and Mae Chan faults constitute the northeast and east boundaries of the eastward extrusion, with their left slip rates being 0.3-14.7, 8.9-17.1, 5.1 ± 2.5, 2.8 ± 2.3, 7.1 ± 2.1, 9.4 ± 1.2, 10.1 ± 2.0, 7.3 ± 2.6, and 4.9 ± 3.0 mm/a respectively. The southwestern boundary consists of a widely distributed dextral transpressional zone other than a single fault. Right slip rates of 4.2 ± 1.3, 4.3 ± 1.1, and 8.5 ± 1.7 mm/a are detected across the Nanhua-Chuxiong-Jianshui, Wuliangshan, and Longling-Lancang faults. Crustal deformation across the Longmenshan fault is weak, with short-ening rates of 1.4 ± 1.0 and 1.6 ± 1.3 mm/a across the Baoxing-Beichuan and Beichuan-Qingchuan segments. Northwest of the Longmenshan fault lies an active deformation zone (the Longriba fault) with 5.1±1.2 mm/a right slip across. Relatively large slip rates are detected across a few faults within the Sichuan-Yunnan block: 4.4±1.3 mm/a left slip and 2.7±1.1 mm/a shortening across the Litang fault, and 2.7±2.3 mm/a right-lateral shearing and 6.7±2.3 mm/a shortening across the Yunongxi fault and its surrounding regions. In conclusion, we find that the Sichuan-Yunnan region is divided into more than a dozen active micro-blocks by a large number of faults with relatively slow slip rates. The eastward extrusion of the Tibetan Plateau is absorbed and adjusted in the region mainly by these faults, other than a small number of large strike-slip faults with fast slip rates.WANG YanZhao WANG EnNing SHEN ZhengKang WANG Min GAN WeiJun QIAO XueJun MENG GuoJie LI TieMing TAO Wei YANG YongLin CHENG Jia LI Peng 2008Science China Earth Sciences2008,51,9:65
7China’s urban expansion from 1990 to 2010 determined with satellite remote sensing显示文摘Based on the same data source of Landsat TM/ETM+ in 1990s,2000s and 2010s,all urban built-up areas in China are mapped mainly by human interpretation.Mapping results were checked and refined by the same analyst with the same set of criteria.The results show during the last 20 years urban areas in China have increased exponentially more than 2 times.The greatest area of urbanization changed from Northeastern provinces in 1990s to the Southeast coast of China in Jiangsu,Guangdong,Shandong,and Zhejiang in 2010s.Urban areas are mostly converted from croplands in China.Approximately 17750 km 2 croplands were converted into urban lands.Furthermore,the conversion from 2000 to 2010 doubled that from 1990 to 2000.During the 20 years,the most urbanized provinces are Jiangsu,Guangdong,Shandong and Zhejiang.We also analyzed built-up areas,gross domestic production (GDP) and population of 147 cities with a population of greater than 500000 in 2009.The result shows coastal cities and resource-based cities are with high economic efficiency per unit of built-up areas,resource-based cities have the highest population density,and the economic efficiency of most coastal provinces are lower than central provinces and Guangdong.The newly created urban expansion dataset is useful in many fields including trend analysis of urbanization in China;simulation of urban development dynamics;analysis of the relationship among urbanization,population growth and migration;studies of carbon emissions and climate change;adaptation of climate change;as well as land use and urban planning and management.WANG Lei LI CongCong YING Qing CHENG Xiao WANG XiaoYi LI XueYan HU LuanYun LIANG Lu YU Le HUANG HuaBing GONG Peng 2012Chinese Science Bulletin2012,57,22:64
8Mapping wetland changes in China between 1978 and 2008显示文摘Four wetland maps for all China have been produced,based on Landsat and CBERS-02B remote sensing data between 1978 and 2008 (1978,1990,2000 and 2008).These maps were mainly developed by manual interpretation and validated by substantial field investigation in 2009.Based on these maps,we analyzed the 2008 wetland distribution in China and discussed wetland changes and their drivers over the past 30 years.(i) There were about 324097 km 2 of wetlands in 2008,for which inland marshes or swamps were the most common wetland type (35%),with lakes (26%) second.Most of the wetlands were in Heilongjiang,Inner Mongolia,Qinghai and Tibet,occupying about 55% of the national wetland area.(ii) From 1978 to 2008,China's wetland area continually and significantly decreased,by about 33% based on changes in the wetland map.This was in sharp contrast to the increase in artificial wetlands,which increased by about 122%.Inland marshes accounted for the main loss of total wetlands from 1978 to 2000.From 2000 through 2008,riverine and lacustrine wetlands constituted the main wetland loss.Fortunately however,the rate of wetland loss decreased from 5523 to 831 km 2 /a.(iii) The change ratio of lost natural wetlands (including inland and coastal wetlands) to non-wetlands has decreased slightly over the past 30 years.From 1978 to 1990,nearly all natural wetlands (98%) lost were transformed into non-wetlands.However,the ratio declined to 86% from 1990 to 2000,and to 77% from 2000 to 2008.(iv) All Chinese provinces were divided into three groups according to patterns of wetland changes,which could relate to the driving forces of such changes.Tibet was completely different from other provinces,as it was one representative example in which there was a net wetland increase,because of global warming and decreased human activity since 1990.Increased economic development caused considerable wetland loss in most eastern provinces,and artificial wetlands increased.NIU ZhenGuo ZHANG HaiYing WANG XianWei YAO WenBo ZHOU DeMin ZHAO KuiYi ZHAO Hui LI NaNa HUANG HuaBing LI CongCong YANG Jun LIU CaiXia LIU Shuang WANG Lin LI Zhan YANG ZhenZhong QIAO Fei ZHENG YaoMin CHEN YanLei SHENG YongWei GAO XiaoHong ZHU WeiHong WANG WenQing WANG Hong WENG YongLing ZHUANG DaFang LIU JiYuan LUO ZhiCai CHENG Xiao GUO ZiQi GONG Peng 2012Chinese Science Bulletin2012,57,22:51
92018 Chinese Pediatric Cardiology Society(CPCS) guideline for diagnosis and treatment of syncope in children and adolescents显示文摘Syncope belongs to the transient loss of consciousness(TLOC), characterized by a rapid onset, short duration, and spontaneous complete recovery. It is common in children and adolescents, accounting for 1% to 2% of emergency department visits.Recurrent syncope can seriously affect children's physical and mental health, learning ability and quality of life and sometimes cardiac syncope even poses a risk of sudden death. The present guideline for the diagnosis and treatment of syncope in children and adolescents was developed for guiding a better clinical management of pediatric syncope. Based on the globally recent development and the evidence-based data in China, 2018 Chinese Pediatric Cardiology Society(CPCS) guideline for diagnosis and treatment of syncope in children and adolescents was jointly prepared by the Pediatric Cardiology Society, Chinese Pediatric Society, Chinese Medical Association(CMA)/Committee on Pediatric Syncope, Pediatricians Branch, Chinese Medical Doctor Association(CMDA)/Committee on Pediatric Cardiology, Chinese College of Cardiovascular Physicians, Chinese Medical Doctor Association(CMDA)/Pediatric Cardiology Society, Beijing Pediatric Society, Beijing Medical Association(BMA). The present guideline includes the underlying diseases of syncope in children and adolescents, the diagnostic procedures, methodology and clinical significance of standing test and headup tilt test, the clinical diagnosis vasovagal syncope, postural orthostatic tachycardia syndrome, orthostatic hypotension and orthostatic hypertension, and the treatment of syncope as well as follow-up.Cheng Wang Yaqi Li Ying Liao Hong Tian Min Huang Xiangyu Dong Lin Shi Jinghui Sun Hongfang Jin Junbao Du Jindou An Jie Chen Mingwu Chen Qi Chen Sun Chen Yonghong Chen Zhi Chen Adolphus Kai-tung Chau Junbao Du Zhongdong Du Junkai Duan Hongyu Duan Xiangyu Dong Lin Feng Lijun Fu Fangqi Gong Yonghao Gui Ling Han Zhenhui Han Bing He Zhixu He Xiufen Hu Yimin Hua Guoying Huang Min Huang Ping Huang Yujuan Huang Hongfang Jin Mei Jin Bo Li Fen Li Tao Li Xiaohui Li Xiaoyan Liu Yan Li Haitao Lv Tiewei Lv Zipu Li Luyi Ma Silin Pan Yusheng Pang Hua Peng Yuming Qin Jie Shen Lin Shi Kun Sun Jinghui Sun Hong Tian Jie Tian Cheng Wang Hong Wang Lei Wang Jinju Wang Wendi Wang Yuli Wang Rongzhou Wu Tianhe Xia Yanyan Xiao Chunhong Xie Yanlin Xing Zhenyu Xiong Baoyuan Xu Yi Xu Hui Yan Shiwei Yang Qijian Yi Xia Yu Xianyi Yu Yue Yuan Hongyan Zhang Huili Zhang Li Zhang Qingyou Zhang Xi Zhang Yanmin Zhang Zhiwei Zhang Cuifen Zhao Bin Zhou Hua Zhu 2018Science Bulletin2018,63,23:54
10Timing of the Wudangshan, Yaolinghe volcanic sequences and mafic sills in South Qinling: U-Pb zircon geochronology and tectonic implication显示文摘The Wudangshan, Yaolinghe volcanic-sedimentary sequences and doleritic-gabbroic sills comprise the largest exposed Precambrian basement in South Qinling. Zircons separated from 5 volcanic-pyroclas- tic samples of the Wudangshan Group, 2 volcanic samples of the Yaolinghe Group and one sample for the mafic sills were used for U-Pb dating by laser ablation-inductively coupled plasma mass spec- trometry (LA-ICPMS). The results reveal that the Wudangshan volcanic sequence was formed at (755±3) Ma (a weighted mean from the 5 samples, MSWD=0.47), whereas the Yaolinghe volcanic suite and the mafic sill were crystallized at (685±5) (2 samples, MSWD=0.36) and (679±3) Ma (MSWD=1.6), respectively, which are equal to each other within analysis errors. These ages are markedly younger than those previously documented for the rocks. The newly obtained ages for the Wudangshan and Yaolinghe Groups are identical to those of the bottom Liantuo and slightly older than those of the Nantuo Forma- tions, respectively, lower strata of the Nanhua (middle to late Neoproterozoic) stratotype section in eastern Three Gorges, Yangtze craton. A range of inherited magmatic zircons was recognized with ages of 830 to 780 Ma, which are typical of Neoprotzrozoic magmatisms recorded along the margins and interior of the Yangtze craton. Thus, there is Neoproterozoic basement comprising 830―780 Ma igne- ous suites in South Qinling; the inherited zircons were detrital sediments derived from the northern margin of the Yangtze craton. Accordingly, it is suggested that the South Qinling is a segment of the Yangtze craton before the Qinling Orogeny.LING WenLi REN BangFang DUAN RuiChun LIU XiaoMing MAO XinWu PENG LianHong LIU ZaoXue CHENG JianPing YANG HongMei 2008Chinese Science Bulletin2008,53,14:44
11Degradation of corn stalk by the composite microbial system of MC1显示文摘MC1 的合成微生物引起的系统被用来降级玉米秸以便象 MC1 的细菌的作文一样决定降级的产品的性质。结果显示发酵肉汤的 pH 典型地代表由 MC1 的木质纤维素降级,在早阶段减少并且在降级的以后的阶段增加。微生物引起的生物资源在在降级以后的日子 3 上达到顶点。MC1 高效地降级了在将近 70% 的玉米秸在哪个期间它的纤维素内容在 71.2% 减少了,在 76.5% 的半纤维素和在 24.6% 的木质素。在发酵肉汤的水溶性的糖类(WSC ) 的内容在开始的三天期间日益增多地增加了,并且此后减少了,建议在降级过程的早阶段的 WSC 的累积。各种各样的不稳定的产品的全部的层次在降级以后在第三天内达到顶点,并且不稳定的产品的 7 种类型在发酵肉汤被检测。这些是乙醇,醋酸, 1,2-ethanediol, propanoic 酸, butanoic 酸, 3-methyl-butanoic 酸和甘油。六主要混合物是分析的份量上,每混合物的内容是乙醇(0.584 g/L ) ,醋酸(0.735 g/L ) , 1,2-ethanediol (0.772 g/L ) , propanoic 酸(0.026 g/L ) , butanoic 酸(0.018 g/L ) 和甘油(4.203 g/L ) 。基于 DNA 的 16S rDNA PCR-DGGE 分析,从文化答案收集的细菌的房间的描述证明在 MC1 的细菌的社区的作文从以前的研究与观察基本上与一致。这显示 MC1 的结构在不同木质纤维素材料的降级期间是很稳定的。GUO Peng WANG Xiaofen ZHU Wanbin YANG Hongyan CHENG Xu CUI Zongjun 2008Journal of Environmental Sciences2008,20,1:39
12The bHLH Transcription Factor MYC3 Interacts with the Jasmonate ZIM-Domain Proteins to Mediate Jasmonate Response in Arabidopsis显示文摘Arabidopsis Jasmonate ZIM 域蛋白质(JAZ ) 充当复杂的 SCFCOI1 的底层镇压他们的下游地指向,它为调整 JA 的植物开发和防卫是必要的。bHLH 抄写因素 MYC2 被发现 JA 回答包括与 JAZ 交往并且调停 JA 禁止的根生长。这里,我们识别了直接由它的 N 终端区域的优点与 JAZ 交往了调整 JA 回答的另一 bHLH 抄写因素 MYC3。有 MYC3 的 overexpression 的转基因的植物在 JA 禁止的根延伸和幼苗开发展出了超敏性。交往 JAZ 模式和 MYC3 的导致 JA 的表示模式从 MYC2 的那些是可区分的。我们推测那 MYC3, MYC2 可以在 JA 回答的规定有冗余而且可区分的功能。Zhiwei Cheng Li Sun Tiancong Qi Bosen Zhang Wen Peng Yule Liu Daoxin Xie 2011Molecular Plant2011,4,2:35
13A study on relationship of nitric oxide,oxidation,peroxidation,lipoperoxidation with chronic cholecystitis显示文摘AIM To study relationship of injury induced bynitric oxide,oxidation,peroxidation,lipoperoxidation with chronic cholecystitis.METHODS The values of plasma nitric oxide(P-NO),plasma vitamin C(P-VC),plasma vitamin E(P-VE),plasma β-carotene(P-β-CAR),plasmalipoperoxides(P-LPO),erythrocyte superoxidedismutase(E-SOD),erythrocyte catalase(E-CAT),erythrocyte glutathione peroxidase(E-GSH-Px)activities and erythrocyte lipoperoxides(E-LPO)level in 77 patients with chronic cholecystitisand 80 healthy control subjects were determined,differences of the above average values betweenthe patient group and the control group anddifferences of the average values betweenpreoperative and postoperative patients wereanalyzed and compared,linear regression andcorrelation of the disease course with the abovedetermination values as well as the stepwiseregression and correlation of the course with thevalues were analyzed.RESULTS Compared with the control group,theaverage values of P-NO,P-LPO,E-LPO weresignificantly increased(P<0.01),and of P-VC, P-VE,P-β-CAR,E-SOD,E-CAT and E-GSH-Pxdecreased(P<0.01)in the patient group.Theanalysis of the linear regression and correlationshowed that with prolonging of the course,thevalues of P-NO,P-LPO and E-LPO in the patientswere gradually ascended and the values of P-VC,P-VE,P-β-CAR,E-SOD,E-CAT and E-GSH-Pxdescended(P<0.01).The analysis of thestepwise regression and correlation indicated thatthe correlation of the course with P-NO,P-VE andP-β-CAR values was the closest.Compared withthe preoperative patients,the average values of P-NO,P-LPO and E-LPO were significantlydecreased(P<0.01)and the average values of P-VC,E-SOD,E-CAT and E-GSH-Px in postoperativepatients increased(P<0.01)in postoperativepatients.But there was no significant difference inthe average values of P-VE,P-β-CAR preoperativeand postoperative patients.CONCLUSION Chronic cholecystitis could inducethe increase of nitric oxide,oxidation,peroxidation and lipoperoxidation.Jun Fu Zhou Dong Cai You Gen Zhu Jin Lu Yang Cheng Hong Peng Yang Hai Yu 2000World Journal of Gastroenterology2000,6,4:36
14Wnt3a signaling promotes proliferation,myogenic differentiation,and migration of rat bone marrow mesenchymal stem cells显示文摘瞄准:调查在增长,迁居,和老鼠骨髓的生肌的、脂肪形成的的区别上发信号的无翼相关的 MMTV 集成地点 3A (Wnt3a ) 的效果间充质的干细胞(rMSC ) 。方法:主要 MSC 被孤立并且从 Sprague-Dawley 老鼠有教养、由流动血细胞计数描绘。老鼠 L 房间是有 Wnt3a cDNA 的 transfected,并且调节了包含活跃 Wnt3a 蛋白质的媒介被准备。房间增长被房间计数和 5-bromodeoxyuridine 加入试金评估。rMSC 的迁居被使用 transwell 迁居和创伤愈合试金执行。在 rMSC 的生肌的、脂肪形成的的区别被轻显微镜学,免疫荧光,和 RT-PCR 在生肌的或脂肪形成的介绍以后在不同时间点检验。结果:发信号的 Wnt3a 导致了 beta-catenin 原子易位并且在 rMSC 激活 Wnt 小径。面对 Wnt3a, rMSC 比控制房间更快增殖了,使他们的区别潜在。而且,发信号的 Wnt3a 在在生肌的是有教养的以后导致了表示 rMSC 的 desmin 和肌浆球蛋白重链中的 2.62% 个和 3.76% 中等。生肌的区别基因,包括的 Pax7, MyoD, Myf5, Myf4,和肌浆蛋白在,在 Wnt3a 处理以后被激活。在另一方面, Wnt3a 在 rMSC 禁止了脂肪形成的区别通过下面 CCAAT/enhancer-binding 蛋白质高山的调整表示哈(C/EBPalpha ) 并且 peroxisome 激活 proliferator 的受体鲸鱼群妈(PPARgamma ) 。而且, Wnt3a 支持了 rMSC 的迁居能力。结论:结果显示在 rMSC 表明罐头 induce 生肌的区别的那 Wnt3a。发信号的 Wnt3a 也涉及增长的规定和 rMSC 的移植。这些结果能在人为基于房间的织物修理提供一个合理基础。Yan-chang SHANG Shu-hui WANG Fu XIONG Cui-ping ZHAO Fu-ning PENG Shan-wei FENG Mei-shan LI YongLI Cheng ZHANG 2007Acta Pharmacologica Sinica2007,28,11:34
15Sample maturation calculated using Raman spectroscopic parameters for solid organics: Methodology and geological applications显示文摘The shape and shift of Raman peak of solid organics prove to be capable of revealing atomic and molecular level vibration information of aromatic ring structure and its relationship with sample maturation. Raman 'D' peaks and 'G' peaks of a series of continuously maturated coal samples were measured, and the inter-peak intervals (G-D) and peak height ratios (Dh/Gh) were derived and correlated with the vitrinite reflectance (vRo%) of standard coal samples. As a result, two formulae were established by using the two Raman indices for calculation of Raman reflectance (RmcRo%), which is equivalent to vitrinite reflectance. The formula for calculating Raman reflectance indicative of organic maturation using Raman shift inter-peak interval (G-D) is RmcRo%=0.0537d(G-D)-11.21, which is mainly applicable to matured to highly matured carbonized samples of solid organics; The formula for calculating Raman reflectance indicative of organic maturation using Raman peak height ratio (Dh/Gh) is RmcRo%=1.1659h (Dh/Gh)+2.7588, which is mainly applicable to carbonized samples of solid organics that are over matured or going to be turned into granulated graphite. Preliminary applications indicate that Raman reflectance 'RmcRo%' calculated based on results of Raman spectral analysis of solid organics can be used to characterize sample maturation at molecular level, so enjoying extensive prospects in geological applications.LIU DeHan XIAO XianMing TIAN Hui MIN YuShun ZHOU Qin CHENG Peng SHEN JiaGui 2013Chinese Science Bulletin2013,58,11:30
16Chinese Multidisciplinary Expert Consensus on the Diagnosis and Treatment of Hyperuricemia and Related Diseases显示文摘Zou, He-Jian Wu, Hu-Sheng Zhou, Jing-Guo Zeng, Xue-Jun Dai, Lie Wu, Hua-Xiang Zhu, Xiao-Xia Mei, Chang-Lin Hao, Chuan-Ming Chen, Nan Liu, Bi-Cheng Chen, Jiang-Hua Yang, Li Nie, Jing Yu, Chen Peng, Ai Yu, Sheng-Qiang Li, Lin Ge, Jun-Bo Huo, Yong Zhang, Shu-Yang Chen, Yun-Dai Dong, Yu-Gang Liang, Chun Dai, Yu-Xiang Gao, Xin Li, Chang-Gui Zhao, Jia-Jun Chen, Hai-Bing Cheng, Zhi-Feng Lin, Huan-Dong Guan, Yang-Tai Wang, Kai Luo, Ben-Yan Dai, Ruo-Lian Jiang, Quan Xue, Luan Liang, Chao-Chao Chen, Ming Fan, Song 2017Chinese Medical Journal2017,,20:30
17Transmission routes of 2019-nCoV and controlsin dental practice显示文摘A novel β-coronavirus(2019-nCoV) caused severe and even fatal pneumonia explored in a seafood market of Wuhan city, Hubei province, China, and rapidly spread to other provinces of China and other countries. The 2019-nCoV was different from SARS-Co V,but shared the same host receptor the human angiotensin-converting enzyme 2(ACE2). The natural host of 2019-nCoV may be the bat Rhinolophus affinis as 2019-nCoV showed 96.2% of whole-genome identity to Bat Co V Ra TG13. The person-to-person transmission routes of 2019-nCoV included direct transmission, such as cough, sneeze, droplet inhalation transmission, and contact transmission, such as the contact with oral, nasal, and eye mucous membranes. 2019-nCoV can also be transmitted through the saliva, and the fecal–oral routes may also be a potential person-to-person transmission route. The participants in dental practice expose to tremendous risk of 2019-nCoV infection due to the face-to-face communication and the exposure to saliva, blood, and other body fluids, and the handling of sharp instruments. Dental professionals play great roles in preventing the transmission of2019-nCoV. Here we recommend the infection control measures during dental practice to block the person-to-person transmission routes in dental clinics and hospitals.Xian Peng Xin Xu Yuqing Li Lei Cheng Xuedong Zhou Biao Ren 2020International Journal of Oral Science2020,12,1:29
18China's wetland change (1990-2000) determined by remote sensing显示文摘Two wetland maps for the entire China have been produced based on Landsat data acquired around 1990 and 2000. Wetlands in China have been divided into 3 broad categories with 15 sub-categories except rice fields. In 1990, the total wetland area in China was 355208 km2 whereas in 2000 it dropped to 304849 km2 with a net loss of 50360 km2. During an approximate 10-year period, inland wetland reduced from 318326 to 257922 km2, coastal wetland dropped from 14335 to 12015 km2, while artificial wetland increased from 22546 to 34911 km2. The greatest natural wetland loss occurred in Heilongjiang, Inner Mon- golia, and Jilin with a total loss of over 57000 km2 of wetland. In western China, over 13000 km2 of wetlands were newly formed in Xinjiang, Tibet, and Qinghai. About 12000 km2 of artificial wetlands were also added for fish farm and reservoir constructions. The newly formed wetlands in western China were caused primarily by climate warming over that region whereas the newly created artificial wetlands were caused by economic developments. China’s wetland loss is caused mainly by human activities.Peng Gong ZhenGuo Niu Xiao Cheng KuiYi Zhao DeMin Zhou JianHong Guo Lu Liang XiaoFeng Wang DanDan Li HuaBing Huang et al. 2010Science China Earth Sciences2010,53,7:28
19Taxus chinensis ameliorates diabetic nephropathy through down-regulating TGF-β1/Smad pathway显示文摘Diabetic nephropathy(DN) is one of the common microvascular complications of diabetes mellitus. Renal fibrosis is closely related to the deterioration of renal function. The present study aimed to investigate protective effect of Taxus chinensis on high-fat diet/streptozotocin-induced DN in rats and explore the underlying mechanism of action. The rat DN model was established via feeding high fat diet for 4 weeks and subsequently injecting streptozotocin(30 mg·kg^(-1) body weight) intraperitoneally. The rats with blood glucose levels higher than 16.8 mmol·L^(-1) were selected for experiments. The DN rats were treated with Taxus chinensis orally(0.32, 0.64, and 1.28 g·kg^(-1)) once a day for 8 weeks. Taxus chinensis significantly improved the renal damage, which was indicated by the decreases in 24-h urinary albumin excretion rate, blood serum creatinine, and blood urea nitrogen. Histopathological examination confirmed the protective effect of Taxus chinensis. The thickness of glomerular basement membrane was reduced, and proliferation of mesangial cells and podocytes cells and increase in mesangial matrix were attenuated. Further experiments showed that Taxus chinensis treatment down-regulated the expression of TGF-β1 and α-SMA, inhibited phosphorylation of Smad2 and Smad3. These results demonstrated that Taxus chinensis alleviated renal injuries in DN rats, which may be associated with suppressing TGF-β1/Smad signaling pathway.WENG Hong-Bo HAN Wen-Ke XIONG Yan-Wen JIN Zhou-Hui LAN Zhen LIU Cheng ZHANG Xue-Mei PENG Wen 2018Chinese Journal of Natural Medicines2018,16,2:28
20Solitary fibrous tumors in abdomen and pelvis:Imaging characteristics and radiologic-pathologic correlation显示文摘AIM:To describe the imaging features of solitary fibrous tumors(SFTs)in the abdomen and pelvis,and the clinical and pathologic correlations.METHODS:Fifteen patients with pathologically confirmed SFTs in the abdomen and pelvis were retrospectively studied with imaging techniques by two radiologists in consensus.Patients underwent unenhanced and contrast-enhanced imaging,as follows:3 with computed tomography(CT)and magnetic resonance imaging(MRI)examination,8 with CT examination only,and 4 with MRI examination only.Image characteristics such as size,shape,margin,attenuation or intensity,and pattern of enhancement were analyzed and correlated with the microscopic findings identified from surgical specimens.In addition,patient demographics,presentation,and outcomes were recorded.RESULTS:Of the 15 patients evaluated,local symptoms related to the mass were found in 11 cases at admission.The size of the mass ranged from 3.4 to 25.1cm(mean,11.5 cm).Nine cases were round or oval,6were lobulated,and 10 displaced adjacent organs.Unenhanced CT revealed a heterogeneous isodense mass in 7 cases,homogeneous isodense mass in 3 cases,and punctuated calcification in one case.On MRI,most of the lesions(6/7)were heterogeneous isointense and heterogeneous hyperintense on T1-weighted images and T2-weighted images,respectively.All tumors showed moderate to marked enhancement.Heterogeneous enhancement was revealed in 11 lesions,and 7of these had cysts,necrosis,or hemorrhage.Early nonuniform enhancement with a radial area that proved to be a fibrous component was observed in 4 lesions,which showed progressive enhancement in the venous and delayed phase.No statistical difference in the imaging findings was observed between the histologically benign and malignant lesions.Three patients had local recurrence or metastasis at follow-up.CONCLUSION:Abdominal and pelvic SFTs commonly appeared as large,solid,well-defined,hypervascular masses with variable degrees of necrosis or cystic change that often displaced adjacent structures.Xue-Ming Li Jing Reng Peng Zhou Ying Cao Zhu-Zhong Cheng Yan Xiao Guo-Hui Xu 2014World Journal of Gastroenterology2014,20,17:27
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